CN102787383A - 1,2-propylene glycol modified terylene fully drawn yarn - Google Patents
1,2-propylene glycol modified terylene fully drawn yarn Download PDFInfo
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- CN102787383A CN102787383A CN2011101252881A CN201110125288A CN102787383A CN 102787383 A CN102787383 A CN 102787383A CN 2011101252881 A CN2011101252881 A CN 2011101252881A CN 201110125288 A CN201110125288 A CN 201110125288A CN 102787383 A CN102787383 A CN 102787383A
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Abstract
The present invention relates to a preparation method for a 1,2-propylene glycol modified terylene fully drawn yarn. The method comprises preparation steps of a condensation polymerization modified polyester melt and a preparation process of a direct spinning terylene fully drawn yarn (FDY). In the preparation process of the condensation polymerization modified polyester melt, p-phthalic acid (PTA), 1,2-propylene glycol, and an ethylene glycol (EG) monomer are adopted as raw materials to prepare a modified copolyester melt; the resulting polyester melt is directly subjected to melt conveying, extruding with a metering pump and a spinning assembly, air blowing cooling and oiling, then passes through a channel, a first godet roller and a second godet, and is finally subjected to winding to prepare the modified terylene fully drawn yarn. The modified terylene fully drawn yarn prepared by the method of the present invention has characteristics of stable fiber shrinkage, uniform dyeing, and excellent spinning performance.
Description
Technical field
The present invention relates to a kind of synthetic fiber, particularly, the present invention relates to a kind of modified dacron full-drawn yarn.
Background technology
Terylene is as one of the big main force of three in synthetic fiber fiber, because of its good physics and chemical characteristic are widely used in garment material and other non-garment industry.Dacron product since coming out, also once with its drapability is good, intensity is high, well-pressed and be used as main textile raw material by downstream user and weave all kinds of textiless.Along with economic globalization, the market internationalization, people are also increasingly high to the requirement of clothes; Not only to have comfortableness; Also will have functionally, lining just develops to light, gentle, functional direction, and composite fibre materials just need improve constantly performance and satisfy requirements of weaving process.
Over past ten years, the development of China polyester industrial rapidly, polyester fiber output is 2,700 ten thousand tons of developing into for the year ends 2010 of 516.5 ten thousand tons at the beginning of 2000, average annual growth rate surpasses 25%, has accounted for 66% of global polyester output.Terylene has become the maximum synthetic fiber kind of output in the chemical fibre, is widely used in clothing, decoration, household textiles, fabrics for industrial use and national economy various aspects such as national defence, Industrial Engineering.5 years from now on, also will keep increasing fast.But as textile material, polyester fiber also has significant disadvantages.Therefore, the processing method of selection science, efficient, high-quality, energy-saving and environmental protection is to adapting to and promoting that the high speed sustainable development of polyester industrial, polyster fibre is most important.
Though in synthetic fiber, polyester fiber has the multiple performance of suitable textile applications and application in industry, thereby it has obtained amazing development since large-scale production.But along with the development of World Science development of technology and world industry, polyester fiber can not satisfy people's requirement fully on performance and function.The result of development and innovation makes people develop large quantities of differential, functionalization and high performance synthetic fiber.
The developing direction of PET industry has been represented in the development and application of present differential polyester fiber new varieties.The technology of differential polyester product exploitation roughly can reduce the following aspects:
(1) spining technology of compound spinning superfine fibre and spin pack design;
(2) the compound spining technology that spins bi-component functional fiber or fibre in differentiation;
(3) fused mass directly spinning prepares the complete set technology of thin dawn, micro denier polyester fiber;
(4) spining technology of various cross section Design of spinneret and profiled filament;
The spining technology of (5) three different fibers and mix fine Design of spinneret with plate;
(6) different contraction mixed fiber yarn Combined Machining Technology;
(7) polymer modification prepares the preparation of functional polyester and fiber thereof;
(8) polymer modification prepares the Application and Development of intelligent fiber and intelligent lining;
(9) the nano-powder in-situ polymerization prepares functional polyester and fiber thereof;
(10) preparation of multiple organic or inorganic nano particle and dispersion technology;
(11) preparation and the spining technology of organic or inorganic nano particle/polymer-matrix composite polyester material;
(12) natural fabric and synthetic fiber, chemical-fibres filaments and short fiber multidimensional combination technology.
Conventional polyester fiber, degree of crystallinity is higher, and percent thermal shrinkage is lower, generally is lower than 10%.Along with continually developing of the continuous expansion of polyester fiber Application Areas, fabric new product, increasing than the demand of the high-shrinkage fiber of high shrinkage to having, all kinds of high-shrinkage fibers are succeeded in developing in succession.
Generally can improve the shrinkage factor of polyester fiber through chemical modification method, promptly in the production process of normal polyester, pass through to add the 3rd monomer, destroy macromolecular regularity; Reduce crystallizing power; And the physical modification of combination spinning drafting process, make the high-shrinkage fibre that makes, boiling water shrinkage height and stable contraction rate; The strength and elongation index is good, satisfies the requirement of back processing better.It is generally acknowledged; As long as can directly carry out the precursor of stretcher strain processing; And do not have big influence to the character of precursor standing time before the processing; And in process the repiece difficulty can not appear, can not cause the finished silk lousiness, intensity is on the low side, the uneven undrawn yarn that dyes, and all can be referred to as pre-oriented yarn or partially oriented yarn (POY).POY technology has following characteristics:
(1) spinning is high around volume speed, and the sub-hardness of winding reel is high, weight is big, be convenient to transportation;
(2) spinning process is stable, suitable DTY processing, and the pre-oriented yarn shelf stability is good.
The present inventor is devoted to the characteristics of nano material aspect the function specificity were incorporated in synthesizing of polyster fibre, and combines pre-oriented yarn production technology of the prior art to accomplish the present invention.
Summary of the invention
The objective of the invention is to continually develop functional polyester fiber in order to satisfy many-sided needs of people to weaving face fabric, we carry out modification through nano modifier to traditional polyester fiber.
To achieve these goals, the invention provides following technical scheme:
A kind of 1 preparation method of, the propylene glycol modified terylene fully drawn yarn of 2-comprises the preparation process of polycondensation modified poly ester melt and the preparation technology of direct spinning terylene drafted fibre (FDY); In the preparation technology of polycondensation modified poly ester melt, adopting terephthalic acid (TPA) (PTA), 1,2-propylene glycol, ethylene glycol (EG) monomer is that feedstock production obtains the modified copolyester melt; Above-mentioned polyester fondant is directly through melt Conveying, through metering, filament spinning component extrude, dry cooling, oil, path, first godet roller, second godet roller, coiling make the modified dacron drafted fibre; The preparation technology who it is characterized in that described modified poly ester melt comprises the steps:
At first; On continuous polycondensation equipment; With terephthalic acid (TPA) (PTA), 1,2-propylene glycol, ethylene glycol (EG) monomer; Mol ratio according to terephthalic acid (TPA) (PTA), 1,2-propylene glycol, ethylene glycol (EG) monomer is 1: the ratio of 0.12-0.018: 1.10-1.18 is measured continuously and stably separately and is joined in the slurry still and pulls an oar; Add butyl titanate, antimony glycol in the making beating still, wherein the mol ratio of the addition of butyl titanate and terephthalic acid (TPA) is 0.01-0.03%, and the addition of antimony glycol and the mol ratio of phthalic acid are 0.02-0.05%;
Then, above-mentioned slurry continous-stable is delivered in esterification-I, the esterification-II agitated reactor, adds stabilizing agent in esterification-II agitated reactor, control esterification yield 95.0%-98.5%, the viscosity of melt is controlled to be 0.64-0.67; Carboxylate is pumped into polycondensation workshop section, under temperature 260-275 ℃ condition, makes the modified poly ester melt by polycondensating process, wherein said stabilizing agent is a triethyl phosphate, and the mol ratio of its addition and terephthalic acid (TPA) is 0.28-0.45%.
Wherein, the temperature of esterification-I agitated reactor is controlled at 248-255 ℃, and control still internal pressure is 0.32-0.42MPa.
Wherein, the temperature of esterification-II agitated reactor is controlled at 262-265 ℃, and control still internal pressure is 0.12-0.18MPa.
Wherein, the temperature of prepolymerization reaction still is controlled at 265-267 ℃, and control still internal pressure is 2.9-6.2KPa.
Wherein, the temperature that final minification gathers agitated reactor is controlled at 268-275 ℃, and control still internal pressure is 55-95Pa.
Wherein, the preparation technology of modified dacron full-drawn yarn (FDY) comprises the steps: above-mentioned modified copolyester melt, through melt Conveying pipeline equipment; Be transported on the melt directly spinning filament production equipment, through measuring pump, filament spinning component, blowing cool off, oil, path, first godet roller, second godet roller, winding process, the temperature of wherein controlling the melt Conveying pipeline is 273-276 ℃; Spinning body temperature is 288-293 ℃; Lateral blowing wind speed 0.35-0.65 meter per second, the first godet roller speed 1000-1300m/min, temperature 70-82 ℃; The second hot-rolling speed 3500-4200m/min, temperature 82-98 ℃.
Wherein, the oil content of modified dacron drafted fibre is 0.72-1.15%.
Wherein, draw ratio is 3.0-3.6 in the FDY technology.
The modified poly ester melt of the present invention specification that is particularly suitable for being used for weaving is the FDY silk of 68D/24F.
The invention has the beneficial effects as follows, a kind of technology of continuous modification dacron polyester melt full-drawn yarn is provided.And adopt the modified dacron FDY filament contraction rate of the present invention's preparation stable, even dyeing, spinning properties is excellent.
The specific embodiment
Embodiment 1
The preparation technology of modified poly ester:
At first on continuous polycondensation equipment; With terephthalic acid (TPA) (PTA), 1,2-propylene glycol, ethylene glycol (EG) monomer; According to the mol ratio of terephthalic acid (TPA) (PTA), 1,2-propylene glycol, ethylene glycol (EG) monomer is that 1: 0.12: 1.10 ratio is measured continuously and stably separately and joined in the slurry still and pulls an oar; Add butyl titanate, antimony glycol in the making beating still; Wherein the mol ratio of the addition of butyl titanate and terephthalic acid (TPA) is 0.01%, and the addition of antimony glycol and the mol ratio of phthalic acid are 0.02%;
Then above-mentioned slurry continous-stable is delivered in esterification-I, esterification-II, the esterification-III agitated reactor, adds stabilizing agent in esterification-III agitated reactor simultaneously continuously; Carboxylate is pumped into polycondensation workshop section, gathers through precondensation and final minification and obtain the modified dacron melt; Polyester fondant obtains the modified dacron section through Cast Strip, pelletizing, drying.Wherein, concrete esterification and polycondensation reaction condition are as shown in table 1.
The preparation technology of modified dacron full-drawn yarn (FDY):
With above-mentioned modified poly ester melt,, be transported on the melt directly spinning filament production equipment through melt Conveying pipeline equipment; Through measuring pump, filament spinning component, blowing cool off, oil, path, first godet roller, second godet roller, winding process, the temperature of wherein controlling the melt Conveying pipeline is 276 ℃, spinning body temperature is 292 ℃; Lateral blowing wind speed 0.45m/s, the first godet roller speed 1000m/min, 77 ℃ of temperature; The second hot-rolling speed 3500m/min, 92 ℃ of temperature.Being fit to the preparation specification through the adjustment filament spinning component is the FDY silk of 68D/24F.
Esterification of table 1 modified poly ester and polycondensation reaction condition
| Condition | Esterification I | Esterification II | Precondensation | Final minification gathers |
| Reaction temperature/℃ | 250 | 262 | 265 | 268 |
| Reaction pressure | 0.35MPa | 0.12MPa | 2.9KPa | 55Pa |
| The time of staying/min | 120 | 120 | 90 | 180 |
Claims (7)
1. the preparation method of the propylene glycol modified terylene fully drawn yarn of 2-comprises the preparation process of polycondensation modified poly ester melt and the preparation technology of direct spinning terylene drafted fibre (FDY); In the preparation technology of polycondensation modified poly ester melt, adopting terephthalic acid (TPA) (PTA), 1,2-propylene glycol, ethylene glycol (EG) monomer is that feedstock production obtains the modified copolyester melt; Above-mentioned polyester fondant is directly through melt Conveying, through metering, filament spinning component extrude, dry cooling, oil, path, first godet roller, second godet roller, coiling make the modified dacron drafted fibre; The preparation technology who it is characterized in that described modified poly ester melt comprises the steps:
At first; On continuous polycondensation equipment; With terephthalic acid (TPA) (PTA), 1,2-propylene glycol, ethylene glycol (EG) monomer; Mol ratio according to terephthalic acid (TPA) (PTA), 1,2-propylene glycol, ethylene glycol (EG) monomer is 1: the ratio of 0.12-0.018: 1.10-1.18 is measured continuously and stably separately and is joined in the slurry still and pulls an oar; Add butyl titanate, antimony glycol in the making beating still, wherein the mol ratio of the addition of butyl titanate and terephthalic acid (TPA) is 0.01-0.03%, and the addition of antimony glycol and the mol ratio of phthalic acid are 0.02-0.05%;
Then, above-mentioned slurry continous-stable is delivered in esterification-I, the esterification-II agitated reactor, adds stabilizing agent in esterification-II agitated reactor, control esterification yield 95.0%-98.5%, the viscosity of melt is controlled to be 0.64-0.67; Carboxylate is pumped into polycondensation workshop section, under temperature 260-275 ℃ condition, makes the modified poly ester melt by polycondensating process, wherein said stabilizing agent is a triethyl phosphate, and the mol ratio of its addition and terephthalic acid (TPA) is 0.28-0.45%.
2. the described preparation method of claim 1 is characterized in that the temperature of esterification-I agitated reactor is controlled at 248-255 ℃, and control still internal pressure is 0.32-0.42MPa.
3. the described preparation method of claim 1 is characterized in that the temperature of esterification-II agitated reactor is controlled at 262-265 ℃, and control still internal pressure is 0.12-0.18MPa.
4. the described preparation method of claim 1 is characterized in that the temperature of prepolymerization reaction still is controlled at 265-267 ℃, and control still internal pressure is 2.9-6.2KPa.
5. the described preparation method of claim 1 is characterized in that the temperature that final minification gathers agitated reactor is controlled at 268-275 ℃, and control still internal pressure is 55-95Pa.
6. the described preparation method of claim 1 is characterized in that the preparation technology of modified dacron full-drawn yarn (FDY) comprises the steps: above-mentioned modified copolyester melt, through melt Conveying pipeline equipment; Be transported on the melt directly spinning filament production equipment, through measuring pump, filament spinning component, blowing cool off, oil, path, first godet roller, second godet roller, winding process, the temperature of wherein controlling the melt Conveying pipeline is 273-276 ℃; Spinning body temperature is 288-293 ℃; Lateral blowing wind speed 0.35-0.65 meter per second, the first godet roller speed 1000-1300m/min, temperature 70-82 ℃; The second hot-rolling speed 3500-4200m/min, temperature 82-98 ℃.
7. the described preparation method of claim 1, the specification that it is characterized in that described modified dacron full-drawn yarn is 68D/24F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101252881A CN102787383A (en) | 2011-05-16 | 2011-05-16 | 1,2-propylene glycol modified terylene fully drawn yarn |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101252881A CN102787383A (en) | 2011-05-16 | 2011-05-16 | 1,2-propylene glycol modified terylene fully drawn yarn |
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| CN102787383A true CN102787383A (en) | 2012-11-21 |
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| CN2011101252881A Pending CN102787383A (en) | 2011-05-16 | 2011-05-16 | 1,2-propylene glycol modified terylene fully drawn yarn |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040689A1 (en) * | 2016-08-31 | 2018-03-08 | 江苏恒力化纤股份有限公司 | High-uniformity coloured polyester industrial yarn and preparation method therefor |
| CN107857872A (en) * | 2017-11-14 | 2018-03-30 | 浙江万凯新材料有限公司 | Mix glycol modified copolyesters and preparation method |
| CN107964689A (en) * | 2017-12-25 | 2018-04-27 | 东南新材料（杭州）有限公司 | A kind of one-step method prepares different contraction fully drawn yarn preparation method and its special spinning jet |
| CN108251909A (en) * | 2017-12-25 | 2018-07-06 | 东南新材料（杭州）有限公司 | A kind of blending-modification by copolymerization super fine denier polyester fiber and preparation method thereof |
| CN109234845A (en) * | 2018-09-06 | 2019-01-18 | 山东莱威新材料有限公司 | A kind of superhigh molecular weight polyethylene flat silk and preparation method thereof |
| CN114086276A (en) * | 2021-12-15 | 2022-02-25 | 杭州朗平纺织有限公司 | High-strength polyester fully drawn yarn and manufacturing method thereof |
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| JPH10204721A (en) * | 1997-01-14 | 1998-08-04 | Toray Ind Inc | Highly shrinkable polyester staple and its production |
| CN101671432A (en) * | 2009-09-17 | 2010-03-17 | 吴江鹰翔万信化纤有限公司 | 1, 2-propylene glycol modified polyethylene glycol terephthalate |
| CN101787583A (en) * | 2010-03-13 | 2010-07-28 | 浙江理工大学 | Method for preparing continuous polymerization directly-spun high-shrinkage polyester filaments |
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2011
- 2011-05-16 CN CN2011101252881A patent/CN102787383A/en active Pending
Patent Citations (3)
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| JPH10204721A (en) * | 1997-01-14 | 1998-08-04 | Toray Ind Inc | Highly shrinkable polyester staple and its production |
| CN101671432A (en) * | 2009-09-17 | 2010-03-17 | 吴江鹰翔万信化纤有限公司 | 1, 2-propylene glycol modified polyethylene glycol terephthalate |
| CN101787583A (en) * | 2010-03-13 | 2010-07-28 | 浙江理工大学 | Method for preparing continuous polymerization directly-spun high-shrinkage polyester filaments |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040689A1 (en) * | 2016-08-31 | 2018-03-08 | 江苏恒力化纤股份有限公司 | High-uniformity coloured polyester industrial yarn and preparation method therefor |
| US10801132B2 (en) | 2016-08-31 | 2020-10-13 | Jiangsu Hengli Chemical Fibre Co., Ltd. | High-uniformity coloured polyester industrial yarn |
| CN107857872A (en) * | 2017-11-14 | 2018-03-30 | 浙江万凯新材料有限公司 | Mix glycol modified copolyesters and preparation method |
| CN107857872B (en) * | 2017-11-14 | 2020-09-25 | 万凯新材料股份有限公司 | Mixed dihydric alcohol modified copolyester and preparation method thereof |
| CN107964689A (en) * | 2017-12-25 | 2018-04-27 | 东南新材料（杭州）有限公司 | A kind of one-step method prepares different contraction fully drawn yarn preparation method and its special spinning jet |
| CN108251909A (en) * | 2017-12-25 | 2018-07-06 | 东南新材料（杭州）有限公司 | A kind of blending-modification by copolymerization super fine denier polyester fiber and preparation method thereof |
| CN109234845A (en) * | 2018-09-06 | 2019-01-18 | 山东莱威新材料有限公司 | A kind of superhigh molecular weight polyethylene flat silk and preparation method thereof |
| CN114086276A (en) * | 2021-12-15 | 2022-02-25 | 杭州朗平纺织有限公司 | High-strength polyester fully drawn yarn and manufacturing method thereof |
| CN114086276B (en) * | 2021-12-15 | 2023-08-04 | 杭州朗平纺织有限公司 | High-strength polyester fully drawn yarn and manufacturing method thereof |
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Application publication date: 20121121 |